Logger.h

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// Copyright Onix Solutions Limited [OnixS]. All rights reserved.
//
// This software owned by Onix Solutions Limited [OnixS] and is
// protected by copyright law and international copyright treaties.
//
// Access to and use of the software is governed by the terms of the applicable
// OnixS Software Services Agreement (the Agreement) and Customer end user license
// agreements granting a non-assignable, non-transferable and non-exclusive license
// to use the software for it's own data processing purposes under the terms defined
// in the Agreement.
//
// Except as otherwise granted within the terms of the Agreement, copying or
// reproduction of any part of this source code or associated reference material
// to any other location for further reproduction or redistribution, and any
// amendments to this copyright notice, are expressly prohibited.
//
// Any reproduction or redistribution for sale or hiring of the Software not in
// accordance with the terms of the Agreement is a violation of copyright law.
//
 
#pragma once
 
#include <OnixS/CME/MDH/Integral.h>
#include <OnixS/CME/MDH/String.h>
 
ONIXS_CMEMDH_NAMESPACE_BEGIN

struct ONIXS_CMEMDH_LTWT LogSeverity
{
    typedef UInt32 Base;

    enum Enum
    {
        Important = 10,

        Regular = 50,

        Debug = 100
    };
};

ONIXS_CMEMDH_EXPORTED
void toStr(std::string&, LogSeverity::Enum);

inline std::string toStr(LogSeverity::Enum mode)
{
    std::string str;
 
    toStr(str, mode);
 
    return str;
}

ONIXS_CMEMDH_EXPORTED
bool fromStr(LogSeverity::Enum&, const Char*, size_t);

struct ONIXS_CMEMDH_LTWT LogCategory
{
    // Enumeration base.
    typedef UInt32 Base;

    enum Enum
    {
        Error,

        Warning,

        Info,

        Debug
    };
};

ONIXS_CMEMDH_EXPORTED
void toStr(std::string&, LogCategory::Enum);

inline std::string toStr(LogCategory::Enum mode)
{
    std::string str;
 
    toStr(str, mode);
 
    return str;
}

ONIXS_CMEMDH_EXPORTED
bool fromStr(LogCategory::Enum&, const Char*, size_t);

class ONIXS_CMEMDH_EXPORTED LogEntry
{
public:
    virtual void category(LogCategory::Enum) = 0;

    virtual void source(const StrRef&) = 0;

    virtual std::string& message() = 0;

    virtual void commit() = 0;
 
protected:
    LogEntry() {}

    virtual ~LogEntry() {}
 
private:
    // Object copying is not supposed.
 
    LogEntry(const LogEntry&);
    LogEntry& operator=(const LogEntry&);
};

class ONIXS_CMEMDH_EXPORTED Logger
{
public:
    virtual ~Logger() {}

    virtual void info(std::string&) = 0;

    virtual LogEntry* addEntry(LogSeverity::Enum) = 0;
 
protected:
    Logger() {}
 
private:
    // Object copying is not supposed.
 
    Logger(const Logger&);
    Logger& operator=(const Logger&);
};
 
ONIXS_CMEMDH_NAMESPACE_END